Motorized level sensors feature a mechanical detection system that eliminates the risk of error associated with electronic sensors, especially in dusty and variable environments.

How Does the System Work?

Free Rotation: When there is no solid material (powder/granule) inside the silo or bunker, the paddle at the tip of the sensor rotates freely and continuously with the help of the motor shaft.

Material Obstruction: When the material level reaches the point where the sensor is located, the rising raw material physically blocks and jams the rotation of the paddle.

Signal and Power Interruption: When the paddle stops, the motor inside the sensor rotates slightly around itself, triggering a mechanical micro-switch. With this triggering, the motor's own power is cut off (thereby protecting the motor's lifespan), and a "level reached" signal (alarm or stop command) is sent externally.

Restarting: When the material level drops below the paddle again, a spring-loaded mechanism returns the motor to its original position; the motor starts running again, and the paddle resumes its rotation.